An
uninvited verbal intervention regarding a strangers' behavior around issues such as
sustainability, global awareness, or personal liberation. 'Kaths' are usually gentle, but can be forceful. Typically, 'Kaths' immediately annoy, but they are offered - often courageously, often ridiculously - in the hope that the more
reflective come to appreciate their logic.
A mild 'Kath': "Please don't litter - I don't want to live in your
wastebasket".
More forceful: "Take off the veil!", as, say, in 35C heat, one
peddles past a
burka wearer walking well behind a summer-casual-dressed male on the bike path.